WO2005016305A1 - Temperature sensitive state-changing hydrogel composition and method for their preparation - Google Patents

Temperature sensitive state-changing hydrogel composition and method for their preparation Download PDF

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Publication number
WO2005016305A1
WO2005016305A1 PCT/KR2004/002034 KR2004002034W WO2005016305A1 WO 2005016305 A1 WO2005016305 A1 WO 2005016305A1 KR 2004002034 W KR2004002034 W KR 2004002034W WO 2005016305 A1 WO2005016305 A1 WO 2005016305A1
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WO
WIPO (PCT)
Prior art keywords
hydrogel
skin
temperature
hydrogel composition
composition
Prior art date
Application number
PCT/KR2004/002034
Other languages
English (en)
French (fr)
Inventor
Tae-Won Son
Young-Hun Kim
Hyun-Oh Yoo
Original Assignee
Genic Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36168657&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2005016305(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Genic Co., Ltd. filed Critical Genic Co., Ltd.
Priority to EP04774311.7A priority Critical patent/EP1653921B1/en
Priority to JP2006523132A priority patent/JP4959328B2/ja
Priority to US10/567,483 priority patent/US8663664B2/en
Publication of WO2005016305A1 publication Critical patent/WO2005016305A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/042—Gels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/736—Chitin; Chitosan; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7007—Drug-containing films, membranes or sheets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/24—Thermal properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/54—Polymers characterized by specific structures/properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/594—Mixtures of polymers

Definitions

  • the present invention relates, in general, a temperature- sensitive state-changing hydrogel composition and a method of preparing the same and, more particularly, to a temperature- sensitive state-changing hydrogel composition, which is transformed, depending on temperature, from a gel state to a fluid state to be cosmetically and efficiently applied to skin, and a method of preparing the same.
  • a state-changing hydrogel composition means a hydrogel material, which contains a great quantity of water, and is suddenly transformed into a fluid state at a certain temperature.
  • Hydrogel is well known as a material suitable to be used as a matrix for the controlled release of drugs (N. A. Pappas Ed., "Hydrogels in Medicine and Pharmacy, Vol.11; Polymers", CRC Press, Inc., 1987). This means that hydrogel as the matrix is used as a drug delivery body containing hormones such as progesterone therein to slowly release the hormones into the body, thereby controlling the quantity of the hormones.
  • hormones such as progesterone
  • 6,361,790 and 6,406,712 by Rolf et al. disclose a method of applying a dressing and a patch to the skin using hydrogel.
  • hydrogel is applied to the skin, but hydrogel only has a function of slowly releasing the drugs contained in hydrogel, acting as a matrix to the skin, while it is maintained in a gel state.
  • the drug delivery to the skin is controlled while hydrogel is kept in the gel state, there are inevitable disadvantages, namely, that it takes a relatively long time for the drugs to permeate through the skin, and that the drugs are delivered only to the portion of the skin with which the hydrogel comes into direct contact.
  • hydrogel greatly affects the delivery of cosmetics or drugs contained in hydrogel to the skin. In other words, greater communication brings about easier and faster delivery of the cosmetics or drugs from hydrogel to the skin, but lesser communication causes less effective and slower delivery.
  • hydrogel adhering to the skin must be removed within a relatively short time in comparison with use of medical drugs for treatment, and thus, it is required that the cosmetics be rapidly delivered to the skin.
  • the cosmetics contained in hydrogel applied to the skin for skincare must be quickly delivered from hydrogel to the skin in a great amount.
  • hydrogel must have a characteristic capable of quickly and uniformly delivering the cosmetics into the skin unlike conventional hydrogel, and thus, there remains a need to develop innovative hydrogel that can fulfill the above characteristics.
  • an object of the present invention is to provide a temperature-sensitive state-changing hydrogel composition, which is transformed into a fluid state by a body temperature after it comes into contact with the skin to be fluidized so as to quickly and uniformly deliver a cosmetic into the skin.
  • Another object of the present invention is to provide a method of producing a temperature-sensitive state-changing hydrogel composition which uniformly and quickly permeates into the skin.
  • the present invention provides a temperature-sensitive state-changing hydrogel composition, which includes 1 - 10 wt % of branched gelation polymer, 0.5 - 5 wt % of electrolyte gelation polymer, 0.5 - 5 wt % of s in-communication enhancer, 1 - 10 wt % of natural biomaterial, 3 - 30 wt % of polyhydric alcohol, 1 - 10 wt % of functional additive, and 30 - 93 wt % of water based on a total weight of the composition. Hydrogel is transformed into a fluid state at 10 - 50°C.
  • the present invention provides a method of producing a temperature-sensitive state-changing hydrogel composition, which includes mixing 1 - 10 wt % of branched gelation polymer selected from the group consisting of galactomannan, glucomannan, guar gum, locust bean gum and pluronic, 0.5 - 5 wt % of electrolyte gelation polymer selected from the group consisting of agar, algin, carrageenan, xanthan and gelan, 1 - 10 wt % of functional additive selected from the group consisting of chitosan, chitosan derivatives, proteoglycans, elastin, collagen, and hyaluronic acid, and 3 - 30 wt % of polyhydric alcohol, with each other, and adding 30 - 93 wt % of water to a mixture at room temperature, and subsequently heating the resulting mixed solution to 45 - 95°C to produce a gel solution; and sequentially adding 1 - 10 wt
  • FIG. 1 is a graph showing viscosity as a function of temperature for a hydrogel composition according to the present invention
  • FIGS. 2a and 2b show two types of gelation polymers constituting a hydrogel according to the present invention, in which FIG. 2a shows gel-state polymer chains where an electrical bond of electrolyte gelation polymers and a physical bond of branched gelation polymers coexists, and FIG. 2b shows fluid-state polymer chains where the electrical bond of the electrolyte gelation polymers exists but the physical bond of the branched gelation polymers does not; and FIGS. 3a and 3b show a hydrogel sheet for skincare prepared using a hydrogel composition of the present invention, in which FIG. 3a is a rayon network textile used as a core, and FIG. 3b is hydrogel according to the present invention.
  • a temperature-sensitive state-changing hydrogel composition according to the present invention is characterized in that it is transformed from a gel state to a fluid state at 10 - 50°C, and preferably a temperature range which approaches body temperature (30 - 40°C) so as to desirably improve the communication between the skin and hydrogel and to quickly deliver a great amount of cosmetics or drugs from the hydrogel composition to the skin due to an enhancer added to the composition.
  • the present invention provides an ideal and effective method of employing hydrogel for skincare that can be used for a relatively short time, and a novel temperature-sensitive state-changing hydrogel composition suitable to the method.
  • the temperature-sensitive state-changing hydrogel composition according to the present invention is transformed from the gel state to the fluid state by body temperature when a hydrogel sheet or patch containing a beauty product is applied to the skin, thereby improving communication between the fluid hydrogel composition and skin. Consequently, the cosmetics smoothly permeate into the skin. Furthermore, since a natural skin-communication enhancer for promoting the delivery of the cosmetics to the skin is contained in the hydrogel composition, a desirable amount of cosmetics is delivered quickly into the skin. Therefore, the present invention provides a novel hydrogel composition which is sensitive to a temperature variance and transformed from the gel state to the fluid state when it reaches a certain temperature.
  • the temperature-sensitive state-changing hydrogel according to the present invention has a physical property that the gel state, i.e.
  • polyhydric alcohol and a functional additive acting as a functional substance are contained in the composition to provide fluidity to the composition so that the hydrogel composition liquefied due to the body temperature adheres to the skin and permeates into the skin when the hydrogel is applied to the skin.
  • the hydrogel composition according to the present invention includes 1 - 10 wt % of branched gelation polymer, 0.5 - 5 wt % of electrolyte gelation polymer, 0.5 - 5 wt % of skin-communication enhancer, 1 - 10 wt % of natural biomaterial, 3 - 30 wt % of polyhydric alcohol, 1 - 10 wt % of functional additive and 30 - 93 wt % of water based on the total weight of the composition.
  • the present inventors found out that when the above stated ingredients are included in hydrogel composition in the above mentioned proportion, the hydrogel composition is transformed into a fluid state due to the body temperature when it is applied to the skin.
  • the ingredients included in the hydrogel composition rapidly adhere to and permeate into the skin.
  • the branched gelation polymer and electrolyte gelation polymer are used as the gel forming substance.
  • the electrolyte gelation polymer maintains the composition of the present invention in the gel state, and in some cases it keeps the composition of the present invention to stay in the gel state at room temperature (about 20°C or so) , preferably 0 - 30°C.
  • the branched gelation polymer functions to transform hydrogel in a solid state into the fluid state when the temperature increases to 10 - 50°C, preferably about 30 - 40°C, that is, similar to body temperature.
  • FIG. 2 shows the gel including the two types of gelation polymers.
  • FIG. 2a shows gel-state polymer chains where an electrical bond of electrolyte gelation polymers and a physical bond of branched gelation polymers coexists
  • FIG. 2b shows fluid-state polymer chains where the electrical bond of the electrolyte gelation polymers exists but the physical bond of the branched gelation polymers does not.
  • the branched gelation polymer available to the present invention is a water soluble polysaccharide polymer which may be exemplified by galactomannan, glucomannan, guar gum, locust bean gum and pluronic.
  • the skin-communication enhancer is a material functioning to improve communication between the composition and skin to help a large amount of cosmetics or drugs to rapidly penetrate from the hydrogel composition into the skin.
  • Illustrative, but non-limiting examples of the skin-communication enhancer include polysaccharides, such as chitosan, proteoglycans, chitosan derivatives, elastin, collagen, hyaluronic acid, or water soluble proteins, and it is preferable that its content be 0.5 - 5 wt% based on the total weight of the composition.
  • the functional additive is contained in a content of 1 - 10 wt% based on the total weight of the composition.
  • a content of 1 - 10 wt% based on the total weight of the composition When the content is excessively low, storage stability is reduced, prohibiting a long-term storage, and when the content is excessively high, the gel state may be not transformed into the fluid state even though the temperature increases.
  • Water is a main ingredient of the hydrogel composition, and its content is 30 - 93 wt% based on the total weight of the composition.
  • the content is excessively low, the gel state is not transformed into the fluid state even though the temperature increases, and when the content is excessively high, gel may be not formed.
  • the branched gelation polymer and electrolyte gelation polymer are mixed with polyhydric alcohol to produce a polymer mixed solution
  • the functional additive is dissolved in polyhydric alcohol to produce a functional solution
  • the two solutions are then mixed with each other to produce a basic mixture solution.
  • the basic mixture solution is mixed with deionized water and heated. While being maintained at 45 - 95°C, the heated solution is sequentially mixed with the skin-communication enhancer and the natural biomaterials to produce the hydrogel composition in the fluid state.
  • the amount of each ingredient is the same as in the abovementioned description of the hydrogel composition of the present invention.
  • available examples of each ingredient are the same as in the abovementioned description.
  • the hydrogel composition of the present invention may be produced in the form of a sheet or a patch to be used for skincare.
  • the fluid hydrogel composition is shaped into a sheet or a patch at a temperature of 30°C or more, preferably 45 - 95°C, and then cooled to room temperature to produce the hydrogel composition in the gel state.
  • FIGS. 3a and 3b show a hydrogel sheet for skincare prepared using the hydrogel composition of the present invention, in which a rayon network textile is employed as a core.
  • FIG. 3a illustrates the rayon network textile
  • FIG. 3b illustrates the hydrogel composition according to the present invention.
  • hydrogel of the present invention has fluidity depending on temperature, and thus, it has a coverage of 100 %. Additionally, since it has a fast migration rate of ingredients, epidermal absorption of hydrogel is improved.
  • the hydrogel composition of the present invention is not only very effective in skincare but also effective in skin treatment when rapid delivery of drugs is required or a skin-communication material is required.
  • hydrogel of the present invention can be effectively used for skincare through a transdermal cosmetic delivery in which cosmetics are delivered from hydrogel to the skin.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Dermatology (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Cosmetics (AREA)
  • Medicinal Preparation (AREA)
PCT/KR2004/002034 2003-08-14 2004-08-13 Temperature sensitive state-changing hydrogel composition and method for their preparation WO2005016305A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04774311.7A EP1653921B1 (en) 2003-08-14 2004-08-13 Temperature sensitive state-changing hydrogel composition and method for their preparation
JP2006523132A JP4959328B2 (ja) 2003-08-14 2004-08-13 温度感応性状態変化ハイドロゲル組成物及びその製造方法
US10/567,483 US8663664B2 (en) 2003-08-14 2004-09-13 Temperature sensitive state-changing hydrogel composition and method for their preparation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0056557 2003-08-14
KR10-2003-0056557A KR100506543B1 (ko) 2003-08-14 2003-08-14 온도 감응성 상태변화 하이드로겔 조성물 및 그 제조방법

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WO2005016305A1 true WO2005016305A1 (en) 2005-02-24

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Country Status (7)

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US (2) US20050037079A1 (ru)
EP (1) EP1653921B1 (ru)
JP (1) JP4959328B2 (ru)
KR (1) KR100506543B1 (ru)
CN (1) CN100467011C (ru)
RU (1) RU2320318C2 (ru)
WO (1) WO2005016305A1 (ru)

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US8663664B2 (en) 2014-03-04
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CN1835734A (zh) 2006-09-20
US20070280974A1 (en) 2007-12-06
CN100467011C (zh) 2009-03-11
EP1653921A4 (en) 2010-12-08
KR100506543B1 (ko) 2005-08-05
EP1653921A1 (en) 2006-05-10
US20050037079A1 (en) 2005-02-17
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JP2007502269A (ja) 2007-02-08
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